Application and care
Can I mix two perfumes
Two perfumes can be explored as separate directed applications, but you should not assume their liquids can be combined into one bottle. A pleasing layered result is a preference question, not a guaranteed compatible formula.
A HUME Fragrance buying guide

Keep containers separate
Avoid altering a perfume with another fragrance, water or alcohol. Finished products are not a home recipe system.
Know each scent first
Try both individually before an optional ordinary-day layering experiment. Observe the later result, not only the combined opening.
Consider overall amount
Two applications can create more presence than expected. Follow directions and respect shared-space boundaries.
Try this before you buy
Describe the purpose of a combination before experimenting, and leave both original liquids unchanged.